Automatic braking control systems for trucks and tractor-semitrailers have become the subject of a sizeable research and development effort. These devices can provide improved vehicle stability and control characteristics in braking maneuvers. An analysis utilizing a mathematical model of a tractor-semitrailer vehicle yielded the following results: Favorable stability and control characteristics in braking maneuvers are maintained when front wheels do not lock, tractor rear-wheel longitudinal slip remains less than front-wheel longitudinal slip, and semitrailer rear wheels do not lock. Effects of kingpin (fifth wheel) location and introduction of coulomb friction at the kingpin are also discussed.
Effects of Tire Slip on the Handling Performance of Tractor-Semitrailers in Braking Maneuvers
Sae Technical Papers
1973 International Automotive Engineering Congress and Exposition ; 1973
1973-02-01
Conference paper
English
Steady State Handling Performance Study & Optimization of Tractor-Semitrailers
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